I have a problem to connect VPN modem/router CISCO 887 9 VA-WE-K to CISCO WRV210. My internal networks work well, as ADSL connections.

I can create a VPN connection between two routers as I see on the WRV210 the state of the tunnel is connected. (No error message in the log). However, they do not communicate. When I try to ping the router 887 to the other internal network does not work, and vice versa.